Full TGIF Record # 251481
Item 1 of 1
DOI:10.1094/PHYTO-104-11-S3.1
Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-104-11-S3.1#page=98
    Last checked: 12/01/2014
    Requires: PDF Reader
    Notes: Item is within a single large file
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Rioux, R.
Author Affiliation:NewLeaf Symbiotics, St. Louis, MO
Title:Potential role of oxalic acid in pathogenicity of Sclerotinia homoeocarpa on creeping bentgrass and various model hosts
Section:2014 APS-CPS Joint Meeting abstracts of presentations
Other records with the "2014 APS-CPS Joint Meeting abstracts of presentations" Section
Meeting Info.:Minneapolis, Minnesota: August 9-13, 2014
Source:Phytopathology. Vol. 104, No. 11S, November 2014, p. S3.98.
Publishing Information:Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Agrostis stolonifera; Disease control; Disease evaluation; Dollar spot; Fungus infection; Oxalic acid; Pathogenicity; Sclerotinia homoeocarpa
Abstract/Contents:"The fungal pathogen Sclerotinia homoeocarpa causes dollar spot, one of the primary diseases of amenity turfgrasses worldwide. S. homoeocarpa produces oxalic acid in vitro but it is not known if this phytotoxin is important for successful host infection by S. homoeocarpa. In the present research, whole plant infection assays were used to investigate the role of oxalic acid in pathogenesis of S. homoeocarpa on creeping bentgrass and various models hosts. Similar symptom severity was observed on all hosts but the relationship between symptom severity and oxalate content varied widely. Surprisingly, oxalate content was more related to symptom severity in hosts with low, as opposed to high, endogenous oxalate content. Time-course studies were used to compare the importance of oxalic acid for infection of creeping bentgrass and Brachypodium distachyon-hosts with low and high oxalate content, respectively-by S. homoeocarpa. These experiments revealed that oxalate content explained 75% of variability in symptom severity for creeping bentgrass but only 28% in B. distachyon. Moreover, an isolate of S. homoeocarpa with low in vitro oxalic acid production was less aggressive on creeping bentgrass but not on B. distachyon. Together, these results indicate that both host endogenous oxalate level and S. homoeocarpa-produced oxalic acid are important for pathogenicity of S. homoeocarpa."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rioux, R. 2014. Potential role of oxalic acid in pathogenicity of Sclerotinia homoeocarpa on creeping bentgrass and various model hosts. Phytopathology. 104(11S):p. S3.98.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=251481
If there are problems with this record, send us feedback about record 251481.
Choices for finding the above item:
DOI: 10.1094/PHYTO-104-11-S3.1
Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-104-11-S3.1#page=98
    Last checked: 12/01/2014
    Requires: PDF Reader
    Notes: Item is within a single large file
Find Item @ MSU
MSU catalog number: b2219736a
Find from within TIC:
   Digitally in TIC by file name: phytp2014novpres
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)